Electric heating – Metal heating – By arc
Patent
1996-05-15
1997-04-22
Evans, Geoffrey S.
Electric heating
Metal heating
By arc
B23K 2600, C23C 400, F01D 1108
Patent
active
056226381
ABSTRACT:
A method for forming a blade tip on a turbine blade of a gas turbine engine includes providing a powder alloy from a family of environmentally-resistant powder alloys and forming the blade tip by melting and fusing the powder alloy to the turbine blade. The blade tip alloys preferably have a chemical composition of, in weight percent, about 14 to about 18 percent chromium, about 6.45 to about 6.95 percent aluminum, about 9.75 to about 11.45 percent cobalt, about 5.95 to about 6.55 percent tantalum, about 1.85 to about 2.35 percent rhenium, about 0.05 to about 1.75 percent hafnium, about 0,006 to about 0.03 percent zirconium, about 0.02 to about 0.11 percent carbon, up to about 1.1 percent silicon, up to about percent 0.01 percent boron, with the balance being nickel and typical impurities.
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Farr Howard J.
Ferrigno Stephen J.
Kelly Thomas J.
Monson Paul J. E.
Schell Jerry D.
Evans Geoffrey S.
General Electric Company
Hess Andrew C.
Narciso David L.
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